... voltage5VInput current 500 mAhCharge time3.5hWarranty12 monthsUniversal CompatibilityIt is compatible for all brands.Such as Motorola,Nokia,Blackberry,HTC,Samsung,Sony ... of lithium-ion cell . If it wouldn’t be used for long time ,the power of the mainboard will consume to ... a lower voltage. For protecting the lithium-ion cell, the protective plate will stop ...